Vertical modular box structures with a cared and compact design, particularly suitable for windows and balconies. Manual working by gear, possibility of working by motor. Front bar is driven in specific side aluminium rails made of stainless steel round bar (T23 MAX) or steel cable (T24 MAX) that can be mounted on windowsills, floors, handrails or walls. Application on the wall or at the ceiling. Elements of the structure built in primary leagues of extruded and die-casted aluminium, other components in thermoplastic resin. Exposed screws made of stainless steel. Painting by polyester powder in our factory performed following rigid qualitative standards. Dimensions: Mt. 4,00 width x mt. 3,00 height